Fig. 1

The brain T2-weighted MRI images. The leisions in the dorsal part of pons (arrows) were considered to cause the bilateral abducens palsy. 1: T2-weighted MRI image showing areas of hyperintensity involving the left cerebellar hemisphere, the dorsal part of pons, thalamus, and right frontal lobe. 2: T2-weighted MRI image after 15 days showing areas of hyperintensity that still involved the dorsal part of pons and thalamus, but not the left cerebellar hemisphere and right frontal lobe. 3: T2-weighted MRI image after 6 months showing areas of hypointensity involving the dorsal part of pons and thalamus